-- Tim Connolly eckrim@bg400.bg
-- ICQ#601237 (Work) & 6458222 (Home)
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Message-ID: <terhi.victor@logonet.com>
Date: Sat, 15 Aug 1998 10:39:35 -0400
From: Tim Connolly <terhi.victor@logonet.com>
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To: Ron Stordahl <xmpmv@xu.edu>
Subject: Re: Locating Radio a distance from computer
References: <ggrv@ns.ca>
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Personally I would stick the computer and TNC and radio at the base of the tower
and run ethernet coax into another computer. Ethernet coax is good for 680 feet
but I've seen that stretched in cases and then again not work at that length in
other cases. 400 feet shuldn't be a problem though.
Ron Stordahl wrote:
> Typically one would locate the radio and TNC near the computer system, but I
> have a situation where the tower is about 400 feet from the shack. Rather
> than running an extra 400 feet of low loss cable how about locating the
> radio and possibly the TNC at the tower base and running either the audio or
> alternatively the RS232 from there to the shack.
>
> 2 possibilities:
>
> 1) Radio at the tower base and TNC and computer in the shack. In this case
> you would have to run the push-to-talk line plus send and receive audio. I
> should mention this is 1200 baud. Would you expect some problems with
> running the audio lines this distance? This would be my prefered method as
> the TNC currently in use is a DRSI card which is an ISA card in the
> computer.
>
> 2) Radio and TNC at the tower base running RS232 lines back to the computer
> at the shack. In this case the DRSI card would not be used, rather I would
> use a COM port to the TNC, probably a MFJ1270C. But here there are 2
> alternatives. The TNC could be run in the KISS mode or the TNC could have
> TheNet X1J4 software installed and communicate with the computer in AX.25
> mode to the COM port.
>
> Anyone with ideas or experience in doing what I am suggesting?
>
> Ron N5IN vjaebw@mx.dy.fi
>
-- Tim Connolly rhfuc.vckiajtt@wcm.hu
-- ICQ#601237 (Work) & 6458222 (Home)
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